This chapter includes difficulties arising in compounding prescriptions for liquid topical applications and articles which are not administered per os- e.g., lotions, liniments, and injections.

In regard to dispensing such preparations it maybe recalled that the Poison Regulations (Pharmacy Act, 1868) require embrocations, liniments, lotions, and liquid disinfectants containing scheduled poisons to be sent out in bottles distinguishable by touch (see page 18). There is a large choice of 'poison-bottles,' and it should be the invariable rule to dispense liquid medicines which are not to be taken internally in bottles distinct in shape or colour, no matter how innoxious the preparations may be. Gargles are an exception to the rule; they are dispensed in a 'mixture-bottle}; but if, as sometimes happens, a mixture is prescribed along with a gargle, the bottles in which they are severally dispensed should be different in shape.

It is advisable not to label as 'Poison' external medicines which are not poisonous. ' For external use' and 'Not to be taken' labels should be used where appropriate. Compare the remarks on pages 12 to 17.